Resonant Conversion of Massless Neutrinos in Supernovae

Details Resonant Conversion of Massless Neutrinos in Supernovae Resonant Conversion of Massless Neutrinos in Supernovae

1996-05-14

arxiv.org/abs/hep-ph/9605301v1

Phys.Rev.D54:4356-4363,1996

Physics

High Energy Physics

High Energy Physics - Phenomenology

latex file, 20 pages, including 3 postscript figures

Scientific paper

10.1103/PhysRevD.54.4356

It has been noted for a long time that, in some circumstances, {\sl massless} neutrinos may be {\sl mixed} in the leptonic charged current. Conventional neutrino oscillation searches in vacuum are insensitive to this mixing. We discuss the effects of resonant massless-neutrino conversions in the dense medium of a supernova. In particular, we show how the detected $\bar\nu_e$ energy spectra from SN1987a and the supernova $r$-process nucleosynthesis may be used to provide very stringent constraints on the mixing of {\sl massless} neutrinos.

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